This has been antagonizing me for months. When I asked my mom what this was, she said, apart from a bookmark, it was a Celtic knot. But when I look it up, I get anything but this.
What is this? What does it mean? Is it from the Celtic culture?
It looks like a kind of square/cross or octagon.
Square / cross is symbol of Tetragrammaton, the four-letter biblical name of the God.
Octagon is the ultimate balance between physical and invisible forces. Harmony and perfect equality between matter and spirit. a oneness of the two. The male and female as one. The fully aware humanity. Exhalation of the breath of creation. It is completion of a cycle and infinity of consciousness.